Introduction
Use the tools & resources collected by Cloudflare Community MVPs in this tool tip to help you implement, use, and troubleshoot Cloudflare.
This is a Cloudflare Community Tip. Community Tips address best practices when configuring Cloudflare, how to fix issues you may see, and tools to use to help you troubleshoot. See all Community Tips.
CLI Multi-Tools
htrace.sh
Multi-Tools
keycdn
CentrolOps.net
TurboBytes
UltraTools
Google Application Security
BGP Stream
@BGPStream
Cloudflare Status
Cloudflare Status
Cloudflare Apps
Store
Developers
Docs
Browsing Experience Security Check
Cloudflare Security Check
Browser
What’s My Browser
Claire, Is Site Using Cloudflare?
cURL
Everything curl - the book
Using cURL when Troubleshooting with Cloudflare
dig
DigWebInterface
DNS Sleuthing with dig
DNS
whatsmydns
DNS Checker
IntoDNS
MxToolbox SPF Record Generator
UltraTools DNS Lookup
DNSape
Historical DNS
SecurityTrails
censys
VirusTotal
DNS Non-HTTPS Links
DNSViz
DNS-over-HTTPS (DoH)
Simple DNSCrypt
Cloudflared
DNS-over-TLS (DoT)
Stubby
unbound
Knot Resolver
DNSSEC
Verisign DNSSEC Analyzer
eMail
MxToolbox
Microsoft Remote Connectivity Analyzer
DMARC Domain Checker
fraudmarc
DKIM Core Tools
proofpoint
Google Postmaster Tools
SPF Generator
Vamsoft
SparkPost
eMail Quality Tests
Spammyness Test
eMail Header Analyzer
MxToolbox Email Header Analyzer
Peering
Hurricane Electric BGP Toolkit
PeeringDB Cloudflare
Privacy Pass
Get Privacy Pass
Cloudflare Supports Privacy Pass
SSL
SSL Labs Server Test
Dev Version SSL Labs Server Test
CDN77 TLS Test
Cloudflare SSL Test
BadSSL
Speed
WebPagetest
Read How to use webpagetest.org for page load speed testing
Latency
Pingdom
GTmetrix
Cloudflare Speed Test Tool
Critical Path CSS Generator
Think With Google
Sucuri
Uptime
Hyperspin
Website
HOSTS.CX
Hardenize
Mozilla Observatory
Search Engine Spider Simulator
BROWSEO
Bot Simulator
Redirect Tracker
ShotSherpa - your website around the world
Wordpress Tests
varvy
1.1.1.1 Tests
Read Me First
1.1.1.1 Diagnostic Tool
Developers
IP Reputation
IP Reputation Investigation
Project Honey Pot
Composite Blocking List
Background & Research Resources
Cloudflare Knowledge Base
Cloudflare Community search
Cloudflare Learning Center
Cloudflare Developers
Google
YouTube
Command Line Power User - Free video tutorials
Helpful On Support Tickets
HAR file(s)
Traceroute
https://www.example.com/cdn-cgi/trace
Helpful Tests, Links and Commands
http://www.example.com/cdn-cgi/trace
$ traceroute example.com
$ dig ns example.com +short
$ dig example.com +trace
$ curl -svo /dev/null https://example.com/
$ curl -svo /dev/null --resolve example.com:443:123.123.123.123 https://example.com/
$ curl -svo /dev/null --resolve example.com:80:123.123.123.123 http://example.com/
*Replace example.com with your domain & 123. with your origin IP address
If You Need More Help
These tools and help from this community of other Cloudflare users may help, if you still need further assistance, login to Cloudflare and then contact Cloudflare Support. When you contact support, make sure to include links to your community posts to help the Support Engineer help you.
Expert Comments Appreciated
This Community Tip will remain open for input from Community experts and those familiar with this issue. We really appreciate comments like: “What are the three things to always try” or “Do this first” or “In my experience”.
This is a Cloudflare Community Tip, review past tips here.